Portable air compressor



FIG. 1 is a front perspective view of a portable air compressor showing my design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a front perspective view of a portable air compressor showing a modified embodiment of my design;

FIG. 8 is a top plan view thereof;

FIG. 9 is a rear elevational view thereof;

FIG. 10 is a left side elevational view thereof;

FIG. 11 is a right side elevational view thereof; and

FIG. 12 is a bottom plan view thereof. 

The ornamental design for a portable air compressor, substantially as shown. 